Wind wheel, fan assembly and air conditioner

Abstract

The invention provides a wind wheel, a fan assembly and an air conditioner. The wind wheel comprises a base, a flow guide ring and a plurality of blades sequentially arranged in the circumferential direction of the base, the flow guide ring is located on one side of the base in the axial direction of the base, and the blades are located between the base and the flow guide ring. Each blade comprises a first part and a second part which are connected, the first part is located between the second part and the axis of the base, the inner diameter of the flow guide ring is not smaller than the outer diameter of the base, and the first part is located on the inner side of the flow guide ring in the radial direction of the base and fixedly connected with the base. The second part is located on the outer side of the base in the radial direction of the base and fixedly connected with the flow guide ring, mold splitting is conducted on the connecting portion of the first part and the second part, the base and the first part are located on a rear mold, the flow guide ring and the second part are located on a front mold, and therefore the wind wheel can be integrally formed in an injection molding mode in an up-down mold stripping mode. The wind wheel provided by the scheme has the advantages of simple manufacturing process, high production efficiency, low production cost and the like.

Description

Technical Field

[0001] The present invention relates to air conditioning equipment technology, and more particularly, to a wind wheel, a fan assembly and an air conditioner. Background Art

[0002] The wind rotor of an existing ceiling fan consists of a base, a guide ring, and multiple blades. The base has the same outer diameter as the guide ring, and the blades are fixed between the base and the guide ring, evenly distributed around the circumference of the wind rotor. The wind rotor manufacturing process involves: first, separately injection molding the base, guide ring, and multiple blades; then, ultrasonically welding the upper edges of the blades to the lower side of the guide ring, and then welding the lower edges of the blades to the upper side of the base. This solution results in a complex wind rotor manufacturing process, low production efficiency, and high production costs, and it cannot be achieved through integral injection molding. Summary of the Invention

[0003] The embodiment of the present invention provides a wind wheel that can be integrally injection molded and has the advantages of simple manufacturing process, high production efficiency, and low production cost.

[0004] The embodiments of the present invention also provide a fan assembly and an air conditioner.

[0005] The wind wheel provided in an embodiment of the present invention includes a base, a guide ring and a plurality of blades arranged in sequence along the circumference of the base, the guide ring is located on one side of the base in the axial direction of the base, and the plurality of blades are located between the base and the guide ring; each of the blades includes a first part and a second part that are connected, the first part is located between the second part and the axis of the base, the inner diameter of the guide ring is not less than the outer diameter of the base, the first part is located on the inner side of the guide ring in the radial direction of the base and is fixed to the base, and the second part is located on the outer side of the base in the radial direction of the base and is fixed to the guide ring.

[0006] In some exemplary embodiments, the periphery of the first part includes a first connecting edge, a second connecting edge and an arc-shaped first wind-guiding edge connected in sequence, the first connecting edge and the first wind-guiding edge are located between the second connecting edge and the axis of the base, and the first connecting edge is fixedly connected to the side of the base facing the side where the guide ring is located, and the second connecting edge is fixedly connected to an end of the second part adjacent to the axis of the base.

[0007] In some exemplary embodiments, the first connecting edge is perpendicular to the second connecting edge, and the convex side of the first wind guide edge faces the inner side of the guide ring.

[0008] In some exemplary embodiments, the periphery of the second part includes a third connecting edge, a fourth connecting edge and a folded second wind-guide edge connected in sequence, the third connecting edge and the second wind-guide edge are located on the side of the fourth connecting edge away from the axis of the base, and the third connecting edge is fixedly connected to the side of the guide ring facing the side where the base is located, and the fourth connecting edge is fixedly connected to one end of the first part away from the axis of the base.

[0009] In some exemplary embodiments, the second wind-guiding edge includes a fifth connecting edge and a sixth connecting edge, the third connecting edge is connected to the fifth connecting edge, the fifth connecting edge is vertically connected to the sixth connecting edge, and the sixth connecting edge is vertically connected to the fourth connecting edge.

[0010] In some exemplary embodiments, the blades are curved blades that are tilted relative to the axis of the base, the thickness of the blades is 2.5 mm to 4.5 mm, and the number of the blades is 7 to 11.

[0011] In some exemplary embodiments, the wind wheel is integrally injection molded and is split at a location where the first portion and the second portion are connected.

[0012] A wind turbine assembly provided by an embodiment of the present invention includes a motor and a wind wheel as described in any one of the above embodiments, wherein the motor is transmission-connected to the wind wheel.

[0013] In some exemplary embodiments, the motor includes an outer rotor and an inner stator assembled together, the base is provided with a plurality of first matching holes, the outer rotor is provided with a plurality of studs, the plurality of studs are respectively inserted into the plurality of first matching holes and are locked and fixed by a plurality of threaded locking members.

[0014] In some exemplary embodiments, the fan assembly further includes: a first shock-absorbing pad, located between the outer rotor and the base; a backing plate, located between the threaded locking member and the base and provided with a plurality of second matching holes for a plurality of the studs to pass through in a one-to-one correspondence; and a second shock-absorbing pad, located between the backing plate and the base.

[0015] An air conditioner provided in an embodiment of the present invention includes the wind wheel described in any one of the above embodiments or the fan assembly described in any one of the above embodiments.

[0016] The wind wheel provided by an embodiment of the present invention has an inner diameter of the guide ring that is not smaller than the outer diameter of the base, so that there is no overlapping area between the projections of the guide ring and the base in the axial direction of the wind wheel, and each blade includes a first part and a second part that are connected, the first part is located between the axis of the second part and the base, and the end of the first part away from the axis of the base is fixedly connected to the end of the second part adjacent to the axis of the base, and the first part is located on the inner side of the guide ring in the radial direction of the base and is fixedly connected to the base, and the second part is located on the outer side of the base in the radial direction of the base and is fixedly connected to the guide ring, and the mold is split at the position where the first part and the second part are connected, so that the base and the first part are in the rear mold, and the guide ring and the second part are in the front mold, so that the wind wheel can be integrally injection molded by upper and lower demolding. Therefore, the wind wheel provided by this scheme has the advantages of simple production process, high production efficiency, and low production cost.

[0017] Other features and advantages of the present invention will be described in the following description, and in part will become apparent from the description, or will be understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained through the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0019] Figure 1 A schematic diagram of the three-dimensional structure of a wind wheel from one perspective provided in some embodiments of the present application;

[0020] Figure 2 for Figure 1 A schematic diagram of the three-dimensional structure of the wind wheel from another perspective;

[0021] Figure 3 A schematic cross-sectional view of a fan assembly provided in some embodiments of the present application;

[0022] Figure 4 for Figure 3 Schematic diagram of the exploded structure of the fan assembly shown;

[0023] Figure 5 for Figure 4 A schematic diagram of the cross-sectional structure of the middle motor, wherein the first shock-absorbing pad is provided on the motor;

[0024] Figure 6 for Figure 4 Schematic diagram of the three-dimensional structure of the middle pad, with the second shock-absorbing pad arranged on the pad;

[0025] Figure 7 A schematic diagram of the three-dimensional structure of a ceiling machine provided in some embodiments of the present application.

[0026] The corresponding relationship between the reference numerals and component names is as follows:

[0027] 100 wind wheel, 110 base, 111 first matching hole, 112 accommodating groove, 120 guide ring, 130 blade, 131 first part, 132 second part, 133 parting line, 141 first connecting edge, 142 second connecting edge, 143 first air guide edge, 151 third connecting edge, 152 fourth connecting edge, 153 second air guide edge, 154 fifth connecting edge, 155 sixth connecting edge, 200 motor, 210 outer rotor, 211 stud, 220 inner stator, 230 threaded locking member, 310 first shock absorber, 311 annular protrusion, 320 pad, 330 second shock absorber, 410 chassis, 420 evaporator, 430 water tray, 440 air guide ring, 450 panel. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions and advantages of the present invention more clearly understood, the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any manner.

[0029] The projections of the wind wheel, the base and the guide ring in the axial direction of the wind wheel provided by the related art have overlapping areas, so the wind wheel cannot be integrally injection molded by the upper and lower mold ejection methods.

[0030] The wind wheel 100 provided in the embodiment of the present invention is as follows: Figure 1 and Figure 2 As shown, it includes a base 110, a guide ring 120 and a plurality of blades 130 arranged in sequence along the circumference of the base 110, the guide ring 120 is located on one side of the base 110 in the axial direction of the base 110, and the plurality of blades 130 are located between the base 110 and the guide ring 120; each blade 130 includes a first part 131 and a second part 132 connected to each other, the first part 131 is located between the second part 132 and the axis of the base 110, that is, the end of the first part 131 away from the axis of the base 110 is fixedly connected to the end of the second part 132 adjacent to the axis of the base 110, the inner diameter of the guide ring 120 is not less than the outer diameter of the base 110, the first part 131 is located on the inner side of the guide ring 120 in the radial direction of the base 110 and is fixedly connected to the base 110, and the second part 132 is located on the outer side of the base 110 in the radial direction of the base 110 and is fixedly connected to the guide ring 120. The axis of the base 110 is a central axis passing through the center of the base 110 and perpendicular to the side surface of the base 110 .

[0031] The inner diameter of the guide ring 120 of the wind wheel 100 is not less than the outer diameter of the base 110, so that there is no overlapping area between the projections of the guide ring 120 and the base 110 in the axial direction of the wind wheel 100. Each blade 130 includes a first part 131 and a second part 132 connected to each other. The first part 131 is located between the axis of the second part 132 and the base 110. The end of the first part 131 away from the axis of the base 110 is fixedly connected to the end of the second part 132 adjacent to the axis of the base 110, and the first part 131 is located in the radial direction of the base 110. The inner side of the guide ring 120 is fixedly connected to the base 110, and the second part 132 is located on the outer side of the base 110 in the radial direction of the base 110 and is fixedly connected to the guide ring 120. The mold is split at the location where the first part 131 and the second part 132 are connected, so that the base 110 and the first part 131 are in the rear mold, and the guide ring 120 and the second part 132 are in the front mold. In this way, the wind wheel 100 can be integrally injection molded by the upper and lower molds. Therefore, the wind wheel 100 provided by this solution has the advantages of simple manufacturing process, high production efficiency, and low production cost. Of course, the wind wheel 100 can also be manufactured by other methods, such as the base 110, the guide ring 120 and the blades 130 are separately injection molded and then connected by ultrasonic welding, etc., which will not be repeated here, but should all fall within the scope of protection of this application.

[0032] In some examples, such as Figure 1 and Figure 2 As shown, the periphery of the first part 131 includes a first connecting edge 141, a second connecting edge 142 and a first wind-guiding edge 143 connected in sequence, the first connecting edge 141 and the first wind-guiding edge 143 are located between the second connecting edge 142 and the axis of the base 110, and the first connecting edge 141 is fixedly connected to the side of the base 110 facing the side where the guide ring 120 is located, and the second connecting edge 142 is fixedly connected to one end of the second part 132 adjacent to the axis of the base 110; the periphery of the second part 132 includes a third connecting edge 151, a fourth connecting edge 152 and a second wind-guiding edge 153 connected in sequence, the third connecting edge 151 and the second wind-guiding edge 153 are located on the side of the fourth connecting edge 152 away from the axis of the base 110, and the third connecting edge 151 is fixedly connected to the side of the guide ring 120 facing the side where the base 110 is located, and the fourth connecting edge 152 is fixedly connected to one end of the first part 131 away from the axis of the base 110. Based on the fact that the axis of the base 110 is set in the vertical direction, the first connecting edge 141 is arranged in the horizontal direction, the second connecting edge 142 is arranged in the vertical direction and coincides with the fourth connecting edge 152, and the second connecting edge 142 and the fourth connecting edge 152 are the parting line 133, that is, the parting line 133 separates the first part 131 and the second part 132.

[0033] Among them, such as Figure 1 and Figure 2As shown, the first connecting edge 141 is perpendicular to the second connecting edge 142, the first air guide edge 143 is configured as an arc-shaped edge (e.g., a circular arc-shaped edge), with the convex side of the arc-shaped edge facing the inner side of the guide ring 120; the second air guide edge 153 is a folded edge including a fifth connecting edge 154 and a sixth connecting edge 155; the third connecting edge 151 is connected to the fifth connecting edge 154, the fifth connecting edge 154 and the sixth connecting edge 155 are perpendicularly connected, and the sixth connecting edge 155 is perpendicularly connected to the fourth connecting edge 152. The rotor 100 is arranged in a vertical direction based on the axis of the base 110, with the fifth connecting edge 154 arranged in a vertical direction and the sixth connecting edge 155 arranged in a horizontal direction and smoothly transitioning to the first connecting edge 143. Under the same rotor 100 speed, number of blades 130, and curved shape of the blade 130 sides, the wind volume of the rotor 100 can be increased by approximately 10%, and the wind noise of the rotor 100 can be reduced by approximately 3dB.

[0034] In some examples, such as Figure 1 As shown, the blade 130 is configured as a curved blade 130 that is tilted relative to the axis of the base 110 (i.e., the side of the blade 130 is a curved surface). The curved blade 130 has a better airflow guiding effect than a straight blade, and can effectively increase the air volume of the wind wheel 100 and reduce the wind noise of the wind wheel 100.

[0035] In some examples, the thickness of the blade 130 is set to 2.5 mm to 4.5 mm, so that the strength of the blade 130 is higher and the operating reliability of the wind wheel 100 is better.

[0036] In some examples, such as Figure 1 and Figure 2 As shown, the number of blades 130 is set to 7 to 11, preferably an odd number, so that the operating performance of the wind wheel 100 is better; it can be that 7 blades 130 are evenly distributed around the circumference of the base 110; or it can be that 9 blades 130 are evenly distributed around the circumference of the base 110; or it can be that 11 blades 130 are evenly distributed around the circumference of the base 110, etc.; the above can all achieve the purpose of the present invention, and its purpose does not deviate from the design concept of the present invention, and will not be repeated here, and should all fall within the scope of protection of this application.

[0037] The fan assembly provided by the embodiment of the present invention is as follows: Figure 3 and Figure 4 As shown, it includes a motor 200 and the wind wheel 100 described in any of the above embodiments. The motor 200 is transmission-connected to the wind wheel 100, and the motor 200 is used to drive the wind wheel 100 to rotate.

[0038] In some examples, such as Figures 3 to 5As shown, the motor 200 includes an outer rotor 210 and an inner stator 220 assembled together. The base 110 is provided with a plurality of first mating holes 111, which are configured as circular holes. The outer rotor 210 is provided with a plurality of studs 211, which are correspondingly inserted into the plurality of first mating holes 111 and are locked and fixed by a plurality of threaded locking members 230, which can be configured as nuts. The outer rotor 210 and the base 110 are positioned and fixedly connected at multiple points (i.e., the plurality of studs 211 and the plurality of first mating holes 111 are correspondingly matched one by one). This can effectively improve the operational stability of the wind wheel 100. This solution is simple to operate and facilitates the assembly and disassembly of the wind wheel 100 and the motor 200. The plurality can be two, three, or four, etc., all of which can achieve the purpose of this application. The purpose does not deviate from the design concept of the present invention and will not be repeated here. All of them should fall within the scope of protection of this application.

[0039] Among them, such as Figures 2 to 4 As shown, a receiving groove 112 is provided in the middle of the base 110, which is recessed toward the inner side of the air guide ring 120. The motor 200 is placed in the receiving groove 112 on the side of the base 110 facing away from the air guide ring 120, and a plurality of first matching holes 111 are located on the bottom wall of the receiving groove 112.

[0040] In some embodiments, as Figures 3 to 6 As shown, the wind turbine assembly further includes: a first shock-absorbing pad 310, which is located between the outer rotor 210 and the base 110 to provide vibration reduction between the outer rotor 210 and the base 110; a backing plate 320, which is located between the threaded locking member 230 and the base 110 and has a plurality of second mating holes for the plurality of studs 211 to pass through in a one-to-one correspondence. The backing plate 320 can be configured as a metal plate; and a second shock-absorbing pad 330, which is located between the backing plate 320 and the base 110 to provide vibration reduction between the backing plate 320 and the base 110. The plurality of studs 211 pass through the first shock-absorbing pad 310, the second shock-absorbing pad 330, and the backing plate 320. This solution generates less vibration and noise in the wind rotor 100 during operation of the wind turbine assembly.

[0041] It can be, for example Figures 3 to 5As shown, the first shock-absorbing pad 310 is provided with an annular protrusion 311 at the position where the stud 211 is passed through, the annular protrusion 311 is passed through the first matching hole 111 and abuts against the second shock-absorbing pad 330. This solution separates the stud 211 and the base 110 through the annular protrusion 311, which can further improve the shock absorption and noise reduction effects of the wind wheel 100; or it can be that the second shock-absorbing pad 330 is provided with an annular protrusion at the position where the stud 211 is passed through, the annular protrusion is passed through the first matching hole 111 and abuts against the first shock-absorbing pad 310. This solution separates the stud 211 and the base 110 through the annular protrusion, which can further improve the shock absorption and noise reduction effects of the wind wheel 100, etc.; the above can all achieve the purpose of this application, and its purpose does not deviate from the design idea of ​​the present invention, and will not be repeated here, and should all fall within the scope of protection of this application.

[0042] An air conditioner provided by an embodiment of the present invention includes the wind wheel 100 described in any one of the above embodiments or the fan assembly described in any one of the above embodiments.

[0043] This air conditioner has all the advantages of the wind wheel 100 or the fan assembly provided by any of the above embodiments, which will not be described in detail here.

[0044] In some examples, such as Figure 7 As shown, the air conditioner includes a ceiling unit, which includes a chassis 410, an open annular evaporator 420, an annular water collecting tray 430, an air guide ring 440, a panel 450 and a fan assembly. The evaporator 420 is arranged in the chassis 410, the fan assembly is located on the inner side of the area enclosed by the evaporator 420, the inner stator 220 is fixed to the bottom wall of the chassis 410, the water collecting tray 430 is located on the side of the evaporator 420 away from the chassis 410, the air guide ring 440 is located on the inner side of the area enclosed by the water collecting tray 430, and the panel 450 is covered on the chassis 410.

[0045] To sum up, in the wind wheel provided by the embodiment of the present invention, the inner diameter of the guide ring is not less than the outer diameter of the base, so that there is no overlapping area in the projections of the guide ring and the base in the axial direction of the wind wheel, and each blade includes a first part and a second part that are connected, the first part is located between the axis of the second part and the base, the end of the first part away from the axis of the base is fixedly connected to the end of the second part adjacent to the axis of the base, and the first part is located on the inner side of the guide ring in the radial direction of the base and is fixedly connected to the base, and the second part is located on the outer side of the base in the radial direction of the base and is fixedly connected to the guide ring, and the mold is split at the position where the first part and the second part are connected, so that the base and the first part are in the rear mold, and the guide ring and the second part are in the front mold, so that the wind wheel can be integrally injection molded by upper and lower demolding. Therefore, the wind wheel provided by this scheme has the advantages of simple manufacturing process, high production efficiency, and low production cost.

[0046] In the description of the present invention, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "relative", "four corners", "periphery", ""mouth"-shaped structure", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0047] In the description of the embodiments of the present invention, unless otherwise expressly specified or limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be understood in a broad sense. For example, they may refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" may refer to a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0048] Although the embodiments disclosed herein are as described above, the contents described herein are merely embodiments for facilitating understanding of the present invention and are not intended to limit the present invention. Any person skilled in the art may make any modifications and variations in the form and details of the embodiments without departing from the spirit and scope of the present invention. However, the scope of patent protection of the present invention shall still be defined by the appended claims.

Claims

1. A wind wheel comprising a base, a guide ring, and a plurality of blades sequentially arranged along the circumference of the base, wherein the guide ring is located on one side of the base in the axial direction of the base, and the plurality of blades are located between the base and the guide ring; characterized in that: Each of the blades includes a first part and a second part that are connected, the first part is located between the second part and the axis of the base, the inner diameter of the guide ring is not less than the outer diameter of the base, the first part is located on the inner side of the guide ring in the radial direction of the base and is fixedly connected to the base, and the second part is located on the outer side of the base in the radial direction of the base and is fixedly connected to the guide ring.

2. The wind wheel according to claim 1, characterized in that: The periphery of the first part includes a first connecting edge, a second connecting edge and an arc-shaped first wind-guiding edge connected in sequence, the first connecting edge and the first wind-guiding edge are located between the second connecting edge and the axis of the base, and the first connecting edge is fixedly connected to the side of the base facing the side where the guide ring is located, and the second connecting edge is fixedly connected to one end of the second part adjacent to the axis of the base.

3. The wind wheel according to claim 2, characterized in that: The first connecting edge is perpendicular to the second connecting edge, and the raised side of the first wind guide edge faces the inner side of the guide ring.

4. The wind wheel according to claim 1, characterized in that: The periphery of the second part includes a third connecting edge, a fourth connecting edge and a folded second wind-guide edge connected in sequence, the third connecting edge and the second wind-guide edge are located on the side of the fourth connecting edge away from the axis of the base, and the third connecting edge is fixedly connected to the side of the guide ring facing the side where the base is located, and the fourth connecting edge is fixedly connected to one end of the first part away from the axis of the base.

5. The wind wheel according to claim 4, characterized in that: The second wind guide edge includes a fifth connecting edge and a sixth connecting edge, the third connecting edge is connected to the fifth connecting edge, the fifth connecting edge is vertically connected to the sixth connecting edge, and the sixth connecting edge is vertically connected to the fourth connecting edge.

6. The wind wheel according to any one of claims 1 to 5, characterized in that: The blades are curved blades that are tilted relative to the axis of the base, the thickness of the blades is 2.5mm to 4.5mm, the number of the blades is 7 to 11, and the wind wheel is integrally injection molded and split at the location where the first part and the second part are connected.

7. A fan assembly, characterized in that: The wind wheel comprises a motor and the wind wheel according to any one of claims 1 to 6, wherein the motor is transmission-connected to the wind wheel.

8. The fan assembly according to claim 7, characterized in that: The motor includes an outer rotor and an inner stator assembled together. The base is provided with a plurality of first matching holes. The outer rotor is provided with a plurality of studs. The plurality of studs are respectively inserted into the plurality of first matching holes and are locked and fixed by a plurality of threaded locking members.

9. The fan assembly according to claim 8, characterized in that: Also includes: a first shock-absorbing pad, located between the outer rotor and the base; a backing plate, located between the threaded locking member and the base, and provided with a plurality of second matching holes for the plurality of studs to pass through in a one-to-one correspondence; and The second shock-absorbing pad is located between the pad and the base.

10. An air conditioner, characterized in that: The wind turbine assembly comprises the wind wheel according to any one of claims 1 to 6 or the wind turbine assembly according to any one of claims 7 to 9.

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